Revert 72685 - [SYNC] Refactor SyncSourceInfo and add support in chrome inval...

chrome/browser/sync/notifier/server_notifier_thread.h

Index: chrome/browser/sync/notifier/server_notifier_thread.h
===================================================================
--- chrome/browser/sync/notifier/server_notifier_thread.h	(revision 72686)
+++ chrome/browser/sync/notifier/server_notifier_thread.h	(working copy)
@@ -59,14 +59,7 @@
   virtual void SendNotification(const OutgoingNotificationData& data);
 
   // ChromeInvalidationClient::Listener implementation.
-  // We pass on two pieces of information to observers through the
-  // IncomingNotificationData.
-  // - the model type being invalidated, through IncomingNotificationData's
-  //       service_url.
-  // - the invalidation payload for that model type, through
-  //       IncomingNotificationData's service_specific_data.
-  virtual void OnInvalidate(syncable::ModelType model_type,
-                            const std::string& payload);
+  virtual void OnInvalidate(syncable::ModelType model_type);
   virtual void OnInvalidateAll();
 
   // StateWriter implementation.